Transient Eddy Current in Magnet Structure Members

HT Yeh

doi:10.1520/STP27591S

SYMPOSIA PAPER Published: 01 January 1981

STP27591S

Transient Eddy Current in Magnet Structure Members

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A computer program was developed to model transient eddy current in thin connected plates. Eddy current is deduced from the solution of an equivalent-network problem. Loop currents are introduced by a transformation as the unknown variables of the network equations (Kirchoff's laws). The network equations are solved numerically by the Runge-Kutta method. This program is quite efficient, allows for holes and multiple materials, and has built-in rotational symmetry options. In cases with known solutions, the model has been checked for both spatial and temporal profiles of the eddy current. Results are given for eddy-current profile and eddy-current loss in the magnet case, support plate, and several other magnet structure members.

Author Information

Yeh, HT

Oak Ridge National Laboratory, Oak Ridge, Tenn.

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Details

Developed by Committee: E07

Pages: 240–254

DOI: 10.1520/STP27591S

ISBN-EB: 978-0-8031-4792-8

ISBN-13: 978-0-8031-0752-6

Transient Eddy Current in Magnet Structure Members

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